Police showed up to the area after triangulating the location, but couldn't find any witnesses or people in need of emergency services, Mandell says.

It turns out the GPS triangulation had the cops about 300 yards from the dock near where Senkowsky's Mercedes was found five days later.

When Hollywood police discovered that call to police was Senkowsky's last phone call, the Fort Lauderdale cops called in the marine unit, which used sonar to find the car 13 feet below the surface, near the SE 15th Street fisheries.

The car was eventually taken out of the water with a crane, and Senkowsky was found inside.

Mandell says Senkowsky's death has been determined by the county medical examiner to be a suicide, and his cause of death was drowning.